(Last Updated On: June 26, 2020) Description: This project is based on Gas leakage detection or smoke detection using the MQ-2 gas/smoke sensor, Arduino Uno, and GSM sim900A module. This project is used for the Gas/Smoke detection, once the Gas/Smoke is detected a message is sent to the owner. This Project can be installed in … Continue reading Arduino Gas leakage detection and SMS alert MQ-2 sensor